Improvement in journal-bearings



ihiiteli tapes stent @time datiou to the lubrication required.

ISAAC P. WENDELL, lOFPHILADELP um, rnNNsYLvANlA, Assienon To4 Letters Patent No. 98,825, dated January 11, 1870.

IMPROVEMENT IN JI'OURNAIi-ZBEARINGS.4

The Schedule referred to in these Letters Patent and making part of the same I, ISAAC P. WENDELL, of thecity of Philadelphia, and State of Pennsylvania, have invented certain Improvements in. Journal -Bearings in relation to lubrication, of which the following is a specification'.v

The nat-ure of my invention consists in the construction of the bearing with recesses in its wearing-surface, and small openings connecting the same with an oil-reservoir in the body ofthe bearing, and filling the said recesses with porous material, through which the oil oozes on to the periphery of the journal, as the latter revolves.

The recesses have flat surfaces, parallel, or nearly so, with the face of the bearing, so as to resist the upward passage of the journal as it bears upon the porous material, whereby the supply of oil is varied to suit the pressure upon thcwearing-surface of the bearing, and the velocity` of the journal, in accommo-r New bearings, before they become well fitted to their journals, are liablel to heat, in consequence of but a small proportion of their wearing-surface taking the pressure of the latter, and hence AI have found it necessary to charge them with a liibricating-material,"eve`n when the journals are lubricated from beneath.

For the accomplishment of this end, I construct the bearings with oil-reservoirs, as above mentioned, to hold oil' enough to last until the faces of the bearings have been worn to a good iit. TheyV may be refilled to aid -the device beneath the journal in keeping up the. requisite lubrication.

In some cases this new device'may be suicient of itself io keep up a perfect lubrication of the journal.

In the accompanying drawings, which make a part of this specification- ,Figure l is a plan or top view of the improved bearing.

Figure 2 is a vertical section of the same at the l line abfof fig. l.

Figure 8 is a cross-section atthe line c d of fig. 1.'

Figure 4 is a reversed plan of the bearing.

Like letters in all the gures indicate the same parts.

A is a journal-bearing of a car-axle, which has reservoir a for holding the lubricating-material,

The said reservoir'is filled with oil through either of the openings b I), there being one at each end, to provide for filling at the side-of the car, outside of the pedestal, when either end of the bearing has an outward position, and admitting of the reversal of the bearing, to compensate for the unequal wearing` at the ends ot' the. same. A

To preserve sufficient strength in the bearing when its sides are brought to a moderate thickness, in corving out the reservoir a, I leave standing one or more braces, e, as seen in the drawings.

which is placed porous material, g, through which oil oozes on to the periphery of the journal as the latter revolves, the oil being permitted to pass from the reservoir a through the small openings h, which connect therecesses with the reservoir. 4

The porous material g may be of rattan, orany other substance or composition which will admit of a regular oil when the journal is in motion. I have sometimes used a mixture of black lead and asbestos, and have found it to answer the purposeV very well.

'.lhe porous material is made even with the wcaringsurface of the bearing, and being more or less elastic; always bears upon the journal vsuicieutly to distribute the oil Vupon the same as the latter revolves, and consequently the distribution will be increased or deation to the requisite lubrication.

The dat surfaces prevent the receding form wearing-surface of the metal and lling atall times, no matter how'great be the upward pressure of the journal, or how high the velocity. Y

If'disclaim the use of porous material placed in openings inthe `cap of journal-boxes for machinery.

What I claim as my invention, and desire to secure by Letters Patent, is-

l. The construction of the'journal-bearing A,'with ,rccesses f and openings h,wl1ich connect the said reopenings are `constructed andV arranged in relation to the wearing-surface of the bearing and the reservoir,

stantially as described.

2. The combination of a porous material with an enclosed journal-bearing, where the whole pressure of the latter comes upon the journal and the said lubricating-media, andthe latter is confined in recesses between which and an oil-reservoir in therbod'y'of the bearing there is an open communication for the passage ofthe oil, substantially as above set forth.

v In testimony whereof, I have hereunto set my hand and aiiixed my sealthis 12th day of September, 1869. ISAAC P. WENDELL. [11. s.]

Witnesses:

STEPHEN UsTIcK, JOHN WHITE.

There are recesses f in the face of the bearing, in

and sufficiently rapid owing through or oozing ot' the creased in proportion to the upward pressure, and the velocity of the journal at'all times, and thus in adaptfasching g from the journal, so as to preserve a continual unicesses with the oil-reservoir a, when said recesses andand the recesses are filled with a. porousmaterial,` through which the oil oozes on to the journal, sub` 

